42587769 divided by 8 
We want to figure out the number of times 42587769 can be divided by 8.

Going ahead to step 1:
When dividing 4 by 8, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 8

Step 2:
8 can be fit into 42 5 times, resulting in a remainder of 2.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we subtract 40 from 42, we get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 8

Moving on to step 3:
8 goes into 25 3 times with a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
Subtract 24 from 25 to get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 8

Step 4:
When dividing 18 by 8, we get 2 with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 532.0
If we take 16 away from 18, we end up with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 8

Moving on to step 5:
27 divided by 8 is 3 with a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 5323.0
If we subtract 24 from 27, we get 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 8

Moving on to step 6:
The number 8 fits into 37 4 times, leaving a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 53234.0
If we take 32 away from 37, we end up with 5.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 8

Advancing to step 7:
When dividing 56 by 8, we get 7 with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 532347.0
If we subtract 56 from 56, we get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 8

Advancing to step 8:
If we divide 9 by 8, we get 1 and a remainder of 1.
The next digit of our result is 1. 
Result so far: 5323471.0
If we subtract 8 from 9, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 9:
The number 8 fits into 10 1 times, leaving a remainder of 2.
The next digit of our result is 1. 
Result so far: 5323471.1
If we subtract 8 from 10, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 10:
8 goes into 20 2 times with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 5323471.12
The remainder is 4 after subtracting 16 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 11:
When dividing 40 by 8, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 5323471.125
If we subtract 40 from 40, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 12:
8 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5323471.125
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 13:
When dividing 0 by 8, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 5323471.125
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 5323471.125 with a remaining 0.0.